Methods and systems for processing dredge spoils

1. A method for processing dredge spoils, comprising:

filtering dredge spoils in filtration equipment;

receiving dredge spoils from the filtration equipment in a land based mobile feed tank;

pumping the dredge spoils from the land based mobile feed tank to an agitation tank;

agitating the dredge spoils in the agitation tank;

pumping the dredge spoils from the agitation tank to a dewatering system, wherein the dredge spoils are dewatered to generate dewatered dredge spoils;

grinding the dewatered dredge spoils in a grinder; and

mixing an additional material with the dewatered dredge spoils to produce a reclaimed soil selected from a group consisting of topsoil, compost, and bedding soil, wherein the additional material comprises sand and an organic additive.

2. The method of claim 1 , further comprising sampling the dewatered dredge spoils and treating the dewatered dredge spoils at multiple locations.

3. The method of claim 1 , comprising agitating the dredge spoils in the land based mobile feed tank.

4. The method of claim 1 , comprising sampling and/or chemically treating the dredge spoils in the agitation tank and the grinder.

5. The method of claim 1 , wherein the dredge spoils are dewatered with at least three filter presses, and wherein the filtration equipment comprises a grizzly-type screen.

6. The method of claim 1 , comprising transporting water removed from the dredge spoils in the dewatering system to a water body undergoing a dredging operation.

7. A method for processing dredge spoils, comprising:

hydrating the dredge spoils from a dredge material placement area, wherein the dredge spoils are not received from an active dredging operation;

receiving the dredge spoils in a land based mobile feed tank in a feed system;

pumping the dredge spoils from the land based mobile feed tank to an agitation tank;

agitating the dredge spoils in the agitation tank;

pumping the dredge spoils from the agitation tank to a dewatering system, wherein the dredge spoils are dewatered to generate dewatered dredge spoils; and

grinding the dewatered dredge spoils in a grinder while mixing the dewatered dredge spoils with an additional material to give a reclaimed soil, wherein the additional material comprises sand and an organic additive.

8. The method of claim 7 , wherein the land based mobile feed tank and agitation tank are a single unit.

9. The method of claim 8 , wherein the agitating occurs in the land based mobile feed tank.

10. The method of claim 7 , wherein the additional material is moved to the grinder/mixer by a conveyor belt, and wherein the filtration equipment comprises a grizzly-type screen.

11. The method of claim 7 , wherein the reclaimed soil comprises at least one material selected from a group consisting of topsoil, compost, and bedding soil.

12. The method of claim 7 , wherein only the hydrated dredge spoils or only the hydrated dredge spoils and one or more chemicals may be pumped from the agitation tank to the dewatering system.

13. A system for processing dredge spoils, comprising:

a feed system that receives dredge spoils, wherein the feed system comprises filtration equipment and a land based mobile feed tank, wherein the filtration equipment comprises a grizzly-type screen;

a first pump for feeding the dredge spoils from the land based mobile feed tank to an agitation tank;

a second pump for feeding the dredge spoils to a dewatering system from the agitation tank; wherein the dewatering system for removing water from the dredge spoils;

a grinder/mixer for grinding the dredge spoils from the dewatering system while mixing the dredge spoils with one or more additional materials to give a reclaimed soil, wherein the one or more additional materials comprise sand and an organic material; and

a solids conveyor for delivery of the reclaimed soil from the grinder/mixer.

14. The system of claim 13 , wherein the land based mobile feed tank comprises a frac tank.

15. The system of claim 13 , comprising a chemical treatment system that injects a chemical into the dredge spoils in the agitation tank.

16. The system of claim 13 , wherein the dewatering system comprises at least three filter presses to remove water from the dredge spoils.

17. The system of claim 13 , wherein the grinder/mixer comprises a pug mill.

18. The system of claim 13 , comprising:

a bagging system to bag the reclaimed soil, wherein the solids conveyor transports the reclaimed soil to the bagging system.

19. The system of claim 13 , wherein the reclaimed soil comprises topsoil, compost, and/or bedding soil.

20. The method of claim 1 , wherein only the dredge spoils or only the dredge spoils and one or more chemicals may be pumped from the agitation tank to the dewatering system.